Compression spring as a representative of spring, use is very extensive, but in different industries and fields in view of the compression spring material, size, processing technology, etc, have different provisions, on the pick is carefully, thus further understanding on the knowledge of compression spring selected it is necessary to help.
Just as below to learn about the compression spring.
a, definitions,
compression spring is also called the spiral spring and compression spring, is a kind of external pressure to provide against the pressure of the spring, when the applied load of compression spring, spring get shorter, then the resistance load, finally restore its original length, it is one of the most common kind of in the spring, is one of the stored energy is the most effective mechanical components.
2, compression spring common materials of
compression spring of common materials of carbon spring steel wire, steel wire,
stainless steel spring wire.
Is carbon spring steel wire with high quality carbon steel wire rod, the lead after isothermal quenching cold drawn to strengthen and become, have low plasticity, the characteristics of strong elasticity, strong ability to resist strain used for mattress, car cushion, machinery manufacturing, stationery, electric tools, electrical equipment and other industries.
Instrument is the piano wire and steel wire is chosen, the patenting drawing at room temperature, has the very high elastic limit and ultimate strength, is widely used the small spring material, the relief valve is in the use of this type of compression spring.
Stainless steel compression spring is made of stainless steel wire after quenching and tempering treatment, can be used in chemical machinery and electronics equipment working environment in areas such as high temperature resistance, corrosion resistance, a kind of comprehensive performance of non-magnetic strong spring.
3, compression spring spring coil direction
spring coil compression spring is like screw thread, has a left-handed and right-handed.
When in use, if want to install a compression spring to another within a compression spring, just make sure the two opposite direction from the options of the compression spring.
If must be within the compression spring screw bolt, just make sure the direction of the bolt and spiral compression spring to conform to, must be considered when choosing to match actual situation otherwise you can't use.
4, the classification of the compression spring
the classification of the compression spring on the shape is cylindrical, conical, concave, in the form of convex and rectangular compression spring, cylindrical compression spring is used as one of the most widely, but is not the same as the other shape spring also has used in different field.
Such as conical compression spring is commonly used in life to fixed batteries, connection is negative form loop;
Hollow compression spring in can bear larger load and have damping effect, the key used to cushion and mattress;
Convex spring in spring ring on both ends of the smaller compared with the cylindrical and conical compression springs can bear larger load, get larger deformation, but the design difficulties, make trouble;
Choose is square wire rectangular compression spring, compared with a circular have greater carrying capacity and longer service life, widely used in die casting, precision stamping die, metal machinery, equipment, automobile and other fields.
5, compression spring technology
compression spring to have the some features, just be sure to pass strict heat treatment processing, in order to improve the compression spring dynamic fatigue performance at work and static variable resistance at work, can make the compression spring do rigid-flexible economic and proper.
Is not the same as the size of heat treatment on the basis of compression spring is divided into thermoforming of heat treatment process of heat treatment and cold forming, the theme of the compression spring under different process characteristic is not the same.
Thermoforming for big spring coiling, spring is very easily distorted shape after heating, resilience is small, need after quenching temperature tempering treatment;
Cold rolled forming for spring steel wire, and resilience is big, need to carry out the tempering treatment after cold roll forming.
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